What is the cheapest airline that flies from London to Southeast Asia?

China Eastern, Shenzhen Airlines, and Etihad Airways are the most popular carriers operating from London to Southeast Asia

How many flights depart from London to Southeast Asia on average per week?

The number of flights available between London and Southeast Asia is 124 per week as of May 2026. The most frequent departure day is Tue, with 15% of weekly flights leaving on this day.

How many flights depart from London to Southeast Asia on average per day?

17 flights are operational daily from London to Southeast Asia as of May 2026. The most popular departure time for this route is 22:00, with 64% of flights per day taking off in the evening.

When did momondo last update prices for flights from London to Southeast Asia?

Prices for flights from London to Southeast Asia refresh daily.

How many operators does momondo search for flights from London to Southeast Asia?

As of May 2026, there is 1 operator available to choose from for flights from London to Southeast Asia.

How old do you have to be to fly from London to Southeast Asia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Southeast Asia.

What documentation or ID do you need to fly to Southeast Asia?

The travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

€344 Cheap Flights from London to Southeast Asia in 2026

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Find the cheapest flights from London to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

21:10 - 11:10

LHR

BKK

31h 00m

1 stop

03:15 - 19:10

BKK

LHR

22h 55m

1 stop

€507Shenzhen Airlines

Wed, 4 Nov - Tue, 17 Nov

21:20 - 00:40

LHR

BKK

21h 20m

1 stop

13:35 - 18:40

BKK

LHR

35h 05m

1 stop

€509China Eastern

Sat, 30 May - Sun, 14 Jun

10:00 - 13:45

LHR

BKK

21h 45m

1 stop

15:25 - 07:30

BKK

LHR

22h 05m

1 stop

€511SAUDIA

Fri, 12 Jun - Thu, 18 Jun

22:10 - 00:05

LHR

BKK

19h 55m

1 stop

15:25 - 07:30

BKK

LHR

22h 05m

1 stop

€512SAUDIA

Tue, 26 May - Sat, 13 Jun

09:15 - 10:15

LGW

RGN

19h 30m

2 stops

12:40 - 06:40

RGN

LGW

23h 30m

2 stops

€762Multiple Airlines

Mon, 15 Jun - Mon, 22 Jun

09:15 - 10:15

LGW

RGN

19h 30m

2 stops

12:40 - 06:40

RGN

LGW

23h 30m

2 stops

€775Multiple Airlines

Sat, 13 Jun - Tue, 23 Jun

14:55 - 22:25

STN

DPS

24h 30m

1 stop

00:35 - 12:55

DPS

STN

19h 20m

1 stop

€890Emirates

Mon, 8 Jun - Mon, 22 Jun

14:55 - 16:35

STN

DPS

18h 40m

1 stop

00:35 - 18:45

DPS

STN

25h 10m

1 stop

€891Emirates

Thu, 28 May - Sun, 7 Jun

20:05 - 20:20

LCY

DPS

40h 15m

1 stop

21:40 - 18:25

DPS

LCY

28h 45m

1 stop

€1,007KLM

Sun, 1 Nov - Sun, 15 Nov

17:05 - 20:35

LCY

DPS

19h 30m

2 stops

21:55 - 17:20

DPS

LCY

27h 25m

2 stops

€1,012KLM

Mon, 2 Nov - Mon, 9 Nov

China Eastern flights from London to Southeast Asia

Our best China Eastern deals on London to Southeast Asia flight tickets

China Eastern

30 May

LHR21:20London Heathrow

21h 20m

1 stop

BKK00:40Bangkok Suvarnabhumi

14 Jun

BKK13:35Bangkok Suvarnabhumi

35h 05m

1 stop

LHR18:40London Heathrow

€509

China Eastern

4 Jun

LHR21:20London Heathrow

17h 35m

1 stop

BKK20:55Bangkok Suvarnabhumi

11 Jun

BKK05:05Bangkok Suvarnabhumi

19h 35m

1 stop

LHR18:40London Heathrow

€525

China Eastern

8 Jun

LHR21:20London Heathrow

17h 35m

1 stop

BKK20:55Bangkok Suvarnabhumi

16 Jun

BKK15:55Bangkok Suvarnabhumi

32h 45m

2 stops

LHR18:40London Heathrow

€531

SAUDIA flights from London to Southeast Asia

Our best SAUDIA deals on London to Southeast Asia flight tickets

SAUDIA

12 Jun

LHR10:00London Heathrow

21h 45m

1 stop

BKK13:45Bangkok Suvarnabhumi

18 Jun

BKK15:25Bangkok Suvarnabhumi

22h 05m

1 stop

LHR07:30London Heathrow

€511

SAUDIA

26 May

LHR22:10London Heathrow

19h 55m

1 stop

BKK00:05Bangkok Suvarnabhumi

13 Jun

BKK15:25Bangkok Suvarnabhumi

22h 05m

1 stop

LHR07:30London Heathrow

€512

SAUDIA

13 Jun

LHR16:15London Heathrow

15h 30m

1 stop

BKK13:45Bangkok Suvarnabhumi

16 Jun

BKK15:25Bangkok Suvarnabhumi

22h 05m

1 stop

LHR07:30London Heathrow

€513

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 4/11

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 17/11

03:15-19:10

1 stop22h 55m

€507

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 30/5

21:20-00:40

1 stop21h 20m

Bangkok Suvarnabhumi

Sun 14/6

13:35-18:40

1 stop35h 05m

€509

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/6

10:00-13:45

1 stop21h 45m

Bangkok Suvarnabhumi

Thu 18/6

15:25-07:30

1 stop22h 05m

€511

Fastest return journey

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 26/5

22:10-00:05

1 stop19h 55m

Bangkok Suvarnabhumi

Sat 13/6

15:25-07:30

1 stop22h 05m

€512

LondonYangon

LGW - RGN

LGWRGN

London Gatwick

Mon 15/6

09:15-10:15

2 stops19h 30m

Yangon Mingaladon

Mon 22/6

12:40-06:40

2 stops23h 30m

€762

LondonYangon

LGW - RGN

LGWRGN

London Gatwick

Sat 13/6

09:15-10:15

2 stops19h 30m

Yangon Mingaladon

Tue 23/6

12:40-06:40

2 stops23h 30m

€775

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Mon 8/6

14:55-22:25

1 stop24h 30m

Denpasar Bali Ngurah Rai

Mon 22/6

00:35-12:55

1 stop19h 20m

€890

LondonDenpasar

STN - DPS

STNDPS

London Stansted

Thu 28/5

14:55-16:35

1 stop18h 40m

Denpasar Bali Ngurah Rai

Sun 7/6

00:35-18:45

1 stop25h 10m

€891

LondonDenpasar

LCY - DPS

LCYDPS

London City

Sun 1/11

20:05-20:20

1 stop40h 15m

Denpasar Bali Ngurah Rai

Sun 15/11

21:40-18:25

1 stop28h 45m

€1,007

LondonDenpasar

LCY - DPS

LCYDPS

London City

Mon 2/11

17:05-20:35

2 stops19h 30m

Denpasar Bali Ngurah Rai

Mon 9/11

21:55-17:20

2 stops27h 25m

€1,012

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Southeast Asia?

The cheapest month to fly to Southeast Asia from London is in November. Flight prices, which tend to average around €689, are often lower during this time because this is during the off-season. If you’re not able to fly to Southeast Asia in November, then September is your next best option. Flight prices from London to Southeast Asia during September average around €698.

What is the cheapest day to depart on your flight to Southeast Asia?

The cheapest day to depart from London to Southeast Asia is on a Monday. Travellers who choose to depart for Southeast Asia on a Monday will often find tickets for as low as €854. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €1,241. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

What is the cheapest time of day to depart on your flight to Southeast Asia?

Our most recent data shows that the best time of day to fly to Southeast Asia is in the evening. Flights from London to Southeast Asia during this time can be as low as €912. Flights to Southeast Asia are more costly in the morning, with an average ticket price of €1,133. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to Southeast Asia flight route?

Fly from London Gatwick to Singapore Changi for the best London - Southeast Asia flight prices

How far in advance should I book a flight from London to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around €796 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from London for as low as €747 on momondo.

Can stopping save me money on London to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between London to Southeast Asia.

Cheap London to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Southeast Asia

Fastest flight time	11h 55m
Direct flights	Every day
Airports in Southeast Asia	295 airports

The fastest flight from London to Southeast Asia takes 11h 55m

Direct flights go from London to Southeast Asia every day.

There are 295 airports in Southeast Asia. From London there are direct flights to Bangkok Suvarnabhumi (BKK).

Search flight deals

Frequently asked questions about flying from London to Southeast Asia

When did momondo last update prices for flights from London to Southeast Asia?
Prices for flights from London to Southeast Asia refresh daily.
How many operators does momondo search for flights from London to Southeast Asia?
As of May 2026, there is 1 operator available to choose from for flights from London to Southeast Asia.
How old do you have to be to fly from London to Southeast Asia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Southeast Asia?
Based on momondo bookings for flights between London and Southeast Asia, the leading plane model is Boeing 787-9 Dreamliner, making up 18.59% of the total bookings. Other popular models include Airbus A350-1000 with 15.03%, Boeing 777 with 12.20%, and Boeing 787-8 Dreamliner with 6.70%.

Best airlines flying from London to Southeast Asia

Compare and see reviews for airlines that fly from London to Southeast Asia with momondo

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom €519	Free Cancellation	Rating 7.3 149 reviews		Search Air China flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Southeast Asia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Southeast Asia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Southeast Asia with flexible booking policies on momondo?

All flight searches from London to Southeast Asia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Southeast Asia?

momondo provides multiple filters to help you find the best flight to Southeast Asia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Southeast Asia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Southeast Asia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.